We are All Pro medical equipment Co., Ltd based in qingdao , China. We are member of Tradekey.com since September, 2008. Our business is related to Beauty & Personal Care industry and we specifically deal in oxygen tanks. Please find our product details below: Portable Oxygen Concentrator Features: 1. E&V portable oxygen concentrator, with elegant design, is very small and light, you can take it wherever you want. 2. Compared with PSA method, it is safer because there is no oxygen tank. Dislike PSA method need replacement and refilling of zeolites and filters, it doesn&＃039;t need any maintenance. No bad smell and irritating noise. 3. Simple operation method is very convenient with LED display. It quickly realizes 30% O2 density air. Operation hours can be reserved by 10 minutes, 20 minutes and 30 minutes. 4. Headset has two nozzles so that a user can adjust air flow. In case that using headset is not comfortable, you can use oxygen stand. 5. Equipped with negative ion generator, so you can enjoy air vitamin while inhaling oxygen. 6. Using air as the material, low cost is needed. Healthy oxygen of 30% with no risk of oxygen-poisoning, even in case of directly and long time inhaling. 7. With 1 minute ventilation operation mode, it can automatically clean the water drop and oxygen remained inside the main unit. 8. DC 12 volt power supply, you can use it in your home or car. SPECIFICATIONS: - Oxygen Supply: 3 liters per min - Oxygen concentration: 30% - Method: Oxygen enrichment membrane - Inhalation method: Headset - Timer: 10, 20, 30 min - Size: 286L x207W x318H mm - Power: DC12V - Weight: 3.7 kg - Sounds: <43 db - Power Consumption: 45 W Medical Oxygen Cylinder We offer water capacities 5L, 6.3L, 7L, 8L, 10L, 15L oxygen and medical cylinders at our China GB5099 standard with QF-2 valves or CGA type valves as per your request. Min. Order qty. 200 pcs and above per shipment. Medical Oxygen Tank description: We have been selling us dot approved m6, mc, md, me, ml6 medical cylinders to the us for two years Cart Type Oxygen Supply Working Pressure: Maxium working pressure 14.7 Mpa. Oxygen absorption: With plug, with marsk. Size and weight: With different volume of tank, the weight and size are different. Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.